8n lever on right side under seat ????

What is the small lever on right side under seat, it is close to where you move your 3point hitch up and down (lever) i moved it today and didnt notice it doing anything, and also while bushogging my bushog will not stay at certain level it goes all the way down you have to hold the lever to keep it wher you want it is there a way to tightn it up

The lever is for position conetrol or draft control . you would use the draft control for plowing, position control for everything else. If you left the lever in the draft control position, then you will have no position control.